Loom-shuttle.



A. ISHERWOOD. LOOM SHUTTLE. APPLICATION FILED JULY 27, 1909.

Patented Aug. 19, 1913.

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Patented Aug. 15, 1913 3 SHEETS-SHEET 2.

Frg. 1Elsucked or drawn through the shuttle-eye by ALFRED ISHERWOOD, OFNEWBEDFORD, MASSACHUSETTS.

LOOK-SHUTTLE.

Specification of Letters Patent.

Patented Aug. 19,1913.

Application filed July 27,1909. Serial No. 509,861.

To all'wlwm it may," concern:

Be it known that I, ALFRED ISHERWOOD, a citizen of the United States,and a resident of New Bedford, in the county of Bristol and State ofMassachusetts, have invented a new and useful Improvement in Loom-Shuttles, of which the following is a specification.

My invention relates to loom shuttles and more particularly to threadingdevices for self-threading shuttles such as are used in automaticfilling-replenishing looms or for common shuttles.

In a common. shuttlethe free end of the thread or filling from thebobbin is usually the mouth of the operator. In a self-threadingshuttle, in which the side of the shuttle at the threading end isslotted or cut down, or otherwise constructed to allow the free passageof the thread, the threading may be done manually or substantiallyautomatically. It frequently happens, however, that during the operationof threading an auto,- matic shuttle, the thread fails to pass throughthe eye and it also happens with both kinds of shuttles thatoccasionally the thread is ballooned outwardly or overthrown by thesudden stopping of the shuttle at the end of its throw therebynecessitating the stopping of the loom.

It is therefore one of the objects of my invention to provide a devicewhereby an automatic or common shuttle may be threaded eitherautomatically or by hand, or par tially automatically and partially byhand in a more positive manner than is possible with the shuttles now inuse, and whereby such ballooning or outward overthrowing ot' the threadmay be prevented; and other objects are to provide a new and simpletension device which may be used separately or in conjunction with mythreading device. and generally to improve the construction of shuttlesin the manner hereinafter set forth. Several embodiments of my inventionare shown in the drawings which accompany and form a part of thisspecification; but it will be understood that various modifications maybe made by those skilled in the art without departing from the principleof my i n venti on.1

' In the drawings Figure 1 is a plan view of the thread or delivery endof one form of my improved shuttle. Fig. 2 isa longitudinal sectiontaken on the line 2 9. of Fig.

1. Fig. 3 is a transverse section taken on the line3 3 of Fig. 1 lookingin the direction of the arrow. Fig. 4 is a plan View of the delivery endof a shuttle of the general type of that shown in Fig. 1 with thethreading device removed, and shows a modification of the shuttle shownin Fig. 1. F ig. 5 is a side view of the threading block removed fromthe shuttle and represents a modification adapted for use with theshuttle shown in Fig 4. Fig. 6 is an end viewof the threading deviceshown in Fig. 5. Fig. 7 is a plan view of the delivery end of a commonshuttle constructed in accordance with my invention. Fig. 8 is a sideview of the shuttle shown in Fig. 7. Fig. 9 represents the blank fromwhich the eve of my improved shuttle may be formed. Fig. 10 is a planview of the eye made from the blank shown in Fig. 9, and adapted for usewith the shuttles shown in Figs. 1, 4 and 8. Fig. 11 is a transversesection of the eye shown in Fig. 10 looking in the'direction of thearrow. Fig. 12 is a side view of a common shuttle such as shown in Fig.8 provided with a modified form of eye. Fig. 13 represents a blank fromwhich said modified form of eye may be made. Fig. 14: is a plan view ofthe eye made from the blank shown in Fig. 13. Fig. 15 is a transversesection of the eye shown in Fig. 14 taken on the linelli, 15 looking inthe direction of the arrow. Fig. 16 is a transverse section of a portionof the shuttle shown in Fig. 12 taken on a line parallel to the lengthof the shuttle near the delivery end of the eye 7. Fig. 17 is a planview of one form of guard that may be used with the shuttle shown inFig. 7. Fig. 18 is an edge view of said guard. Fig. 1.9 is a front viewof the guard shown in Fig. 17. Fig. 20 is a plan'vicw of a commonshuttle such shown in Fig. 7 provided with a modified form of guard.Fig. 21 is a transverse section taken on the line 21, 21 of Fig. 20.Fig. 22 is a perspective view of the guard shown in Fig. 20. Fig. 23 isan end view of another form of guard that may be employed in connectionwith the shuttle shown in Fig. 20... Fig. 24 is a central sectio n, andFig. is a plan view, of the guard shown in Fig. 22. I

In the drawings-selected for illustrating the principle of my invention,1 represents a self-threading shuttle provided with the usual metallictip 2 and having a threadingblock 3 renu'ivably inserted in the throator delivery-end and held in position by a bolt 3' or by other suitablemeans. ing-block which may be cast in brass or other suitable metalresembles in its general structure that shown and described in thepatent to Northrop No. 926,016, dated June 22, 1909 and does notconstitute a part of my invention except as hereinafter specified. Thethreading-block is provided with a slot 5 for, receiving the thread Afrom the bobb'ih and has a guard l overhanging said slot and providedwith a lateral extension 4 extending outwardly toward the delivery-endof the shuttle. The downwardly and the rearwardly extending portion 4:of the guard is placed. opposite a groove 4 in the threading-block. Thethreading-block is also provided with a rearwardly and inwardlyextending beak 6 which projects into the circumferential portion 8 of aslot in the eye 7 and serves as hereinafter set forth to guide thethread into said eye.

The eye 7 is preferably formed from a blank shown in Fig. 9 and isapproximately circular in section throughout a portion of its length.This eye is provided with the above mentioned slot 8 which intersectsthe longitudinal slot 8' and the latter terminates in acircular hole 14on the upperside of the eye. The inner lip 13 is formed by bending theportion of the blank shown at 13 in Fig. 9 under the surface of the eyeso that thelip underlies a portion of the longitudinal slot 8 as mostclearly shown in Fig. 10. The delivery-end of the eye near the frontwall of the shuttle is provided with t1 7; downwardly extending curvedlips 15 :t '16 formed by bending the portions of tlieigblank designatedas 15 and 16 in Fig. 9.

The essential features of my invention as so far described consist inthe guard 4, 4: with its cotiperating slot 4', the guiding beak 6 andthe eye with its inner and outer lips.

When the shuttle above described is threaded either automatically ormanually, the free end of the thread A from the bobbin is passed overthe guardd, the slot 4: permits ting this to be easil done, through theslot 5 and under the hop 17, as the shuttle moves inwardly, and then asthe shuttle moves outwardly the thread passes over the'beak 6 and is.guided thereby into the slot 8 of the eye, and then further outwardmovement of the shuttle causes the thread to pass over the inner lip 13into the slot 8' and thence into the hole 14. The thread then passesthrough the space between the shuttle and the lip 15 which extendsslightly below the transverse hole bored in the shuttle for re ceivingthe eye 7 (as shown in Fig. 8) and is thereby prevented from leaving theeye. At the completion of the threading operation, the position of thethread in the shuttle'is as shown at A A in Fig. 1.

In the modifications shown in Figs. 4, 5

The thread,

and 6 the function of the outer lip 15 substantially is performed by thepin 10 which projects from the threading-block and passes into the slot9 near the front wall of the shuttle. Furthermore by constructing thispin to fit fairly tightly in the slot, the thread may be placed undertension, the amount of which depends upon the closeness of the fit ofthe pin in the slot, and in such case the usual flannel tension shown atB may be eliminated. The eye 7 which I have described above inconnectionwith the automatic shuttle may also be employed in the commonshuttle shown at l in Figs. 7 and 8, in which the delivery end of theshuttle is provided with the slot 11 extending as shown diagonallyacross the top of the shut-\ tle and having its inner end terminating atthe slot 8 of the eye and intersecting the longitudinal slot 12 formedin this front side of the shuttle. In this case the operator in stead ofsucking the thread through the eye, grasps one end of the thread andpasses it through the slot 11 thereby bringing it into the slot 8 of theeye and then draws it iri-. wardly through the slot 12, thereby causingthe thread to enter the slot 8, to pass under the lip 13 and out intothe hole 14, and finally to pass between the shuttle and the lip 15,whereupon the shuttle is'threaded and the position ofthe thread in theshuttle is as shown in Fig. '7 at A A.

In order to prevent the outward ballooning of the thread I may employ aguard which may also perform the functior of a tension device. Thisguard which is shown in detail in Figs. 17, 18 and 19, consists of abase 20 which is held in adjustable position in two slots cut in thethroat of the shuttle, an upwardly extending piece 20 substantially atright angles to said base and an outwardly extending fiat piece 17, thecorner 18 of which enters a groove in the shuttle above the eye 7 and isfirmly held in position thereby. The piece 17 is provided with arearwardly extending lip or ollset 19, which as shown in Fig. 7, fitsloosely into a slot in theshuttle, the slot being large enough to permitthe thread to pass over said lip. The flat piece 17 is curved through- 3out its length on its rearward side as shown in Figs. 7 and 17. 22 is aneye which I may call a tension-eye consisting of a slit in the inwardend of the guard, and 21 is an up wardly extending guard for said eye.The 3 eye 22 is so positioned with respect to' the hole 14 in the top ofthe eye 7 as to put the thread under tension, and in the presentinstance the eye 22 is placed below the hole 14 so that the thread mustpass u an in cline from the eye 22 to the top of t e eye 7. The tensionon the thread may be r ulated by turning the eye 7 in its socket, Wenthe guard just described is employed, the thread is brought throughthe slot 11 and then the 1 and then over the I some inward movement ofthe thread through the 1 slot 12 will draw thethread over the lip 1-9hereinbefore' described.

It will be understood from the above description that the eye 7 may beem loyed with an automatic or a common s the metallic tension describedin connection with Figs. 4, 5 and 6, and that if used in a 1 commonshuttle it may be employed with :or without the combined guard andtension device described in connection with Figs. 17

18 and 19, or with any other tension device.

In Fig. 14 I haveshown a modified form of eye that may be employed ineither the automatic or mmmon shuttle. This eye 7 is provided with thecircumferential and longitudinal slots 8 8, the lip'l3 and hole 14, allas above described in connection with Fig. 9. The hole 23 is cut in thewall of the eye near the delivery-end thereof and the interior ton ue 23is bent to cooperate with said hole. in order to prevent undue tensionon the thread as it passes between the tongue and hole, a portion oftheshuttle may be cut away to form the recess shown at 24. In threadinga common shuttle provided with the eye 7 the thread on passing throughthe slot 12 enters the slots 8 and 8 of the eye as hereinbeforedescribed and then passes from the bottom of the eyesocket to the eyebetwen the tongue 23 and hole 23, the said tongue which may projectslightly into said hole serving to prevent the thread from leaving thedelivery-end of the eye.

It will be understood that any suitable tension device, such as thatshown in Fig. 18, may be'employed in connection with the eye as shown inFig. 12. In Fig. 20 I have shownanother type of guard to prevent outwardballooning. This guard consists es sentially of the base 25 which slidesthrough grooves in the throat of the shuttle to insure the properpositioning of the guard and two upwardly extending members, one ofwhich shown at 2?,is an inverted U-sbapedmember provided with a hole 28,and the other a tongue 26 projecting into and ,Miperating with saidhole. During the process of threading the shuttle, the thread will passbetween the tongue and member 27 and will be thereafter guard andoverthrowing into the slot 11 or catching on any other portion of theshuttle or loom. It will be understood that, the guards shown in Figs.20 and 23 maybe employed with any suitablejension device and thatrequired in certain classes of weaving the tension device may beomitted.

In Figs. 23, another type of guard located between the uttle, eitherwith the usuai flannel tension or with the eye, and a lip in theprevented from leaving the leaving sald eye,

, of sand eye.

24 and 25 I have illustrated eye and the bobbin for the purpom oiventing the overthrowing of the thread. This guard comprises'a'base 32which slides through grooves in the throat of the shuttle in the mannerillustrated in Fig. 20 with respect to the base 25 of the guard thereinshown.

The base 32 carries two rightangular over-lapping members 29 and30, themember 29 corresponding to the tongue 26 of the guardshown in Fig. 20and the member 30 corresponding to the piece 27 shown in said figure.The members 29 and 30 overlap and the latter may be provided with a hole31 into which the tongue-shaped member 29 projects and with which itcooperates to prevent the thread leaving the guard. The members 29 and30 may as shown extend beyond their upright supports and the lateralextensions 33 may, if desired, slide in grooves cut in the throat of theshuttle to 'prevent the thread from catching in the space whichotherwise might be left between the guard and inner wall of the shuttle.

In order to more clearly define the several elements of my invention Iadopt the same definitions of the terms frontward and rearward asapplied to the walls of the shuttle and the terms inward and outward asapplied to the direction of the shuttle in opcrationas have been setforth in the patent to Northrop aforesaid.

1. A loomshuttle having a removable delivery eye inserted transverselyin the throat of the shuttle and provided with a slot, and a lip in theinterior of said eye adjacent to said slot,-said lip passing under andeX- tending across and beyond said slot.

2. 'A lormi-shuttle having a removable delivery-eye insertedtransversely in the throat of the shuttle and provided with a slot, one

portion of said slot being circumferential and the other portion thereofat right angles to the first portion being longitudinal of interior ofsaid eye adjacent to and passing under the longitudinal portion of saidslot, said lip being adapted to prevent the filling-thread from leavingsaid eye.

3. A loom-shuttle having a removable delivery-eye inserted transverselyin the throat of the shuttle and provided with a slot, a lipin theinterior of said eye adjacent to and passing under said slot, said lipbeing adapted to prevent thefilling-thread from and a tongue near thedelivery-endof said eye, located adjacent to and cooperating with a holein the'wall 4. A loom-shuttle having '1 removable glelivery-eye insertedtransversely in the throat of the shuttle and provided with 'a slot, oneportion of said slot being circumferential and the other portion thereofat right angles to the first portion, being longitudinal of the eye, alip in the interior of said eye adjacent to and passing under said slotand an interior tongue secured to the eye near the delivery end thereof,said tongue being adapted to prevent the fillingthread from leaving theeye.

5. A loom-shuttle having a removable delivery eye inserted transverselyin the throat of the shuttle and provided with a slot, one portion ofsaid slot being circumferential and the other portion at right angles tothe first portion being longitudinal of the eye, a lip in the interiorofsaid eye, adjacent to and passing under the longitudinal portion of saidslot, and a tongue secured to said eye near the delivery end thereof,said tongue being adapted to prevent the filling thread from leaving theeye.

6. A loom-shuttle having a removable delivery-eye inserted transverselyin the throat of the shuttle and provided with a slot, one portion ofsaid slot being circumferential and the other portion thereof at rightangles to the first portion being longitudinal of the eye, a lip in theinterior of said eye adjacent to and passing under the longitudinalportion of said slot, and a tongue near the delivery end of said eyelocated adjacent to and cooperating with a hole in the wall of said eye.

7. A loom shuttle having a removable delivery eye insertedtransverselyin the throat of the shuttle'and provided with a slot, and alip in the interior of said eye and adjacent to said. slot,.said'lipbeing integral with said eye and consisting of a member bent back underthe wall of the eye, the inner end of said member terminating beyondsaid slot.

8. A loom shuttle having a removable delivery eye inserted transverselyin the throat of the shuttle and provided with a slot, one portion ofsaid slot being circumferential and the other portion at right angles tothe first portion, being longitudinal to the eye, and a tongue securedto said eye near the delivery end thereof, said tongue being adapted toprevent the filling-thread from leaving the eye.

. 9. A loom shuttle having a removable delivery eye insertedtransversely in the throat of the shuttle and provided with a slot, oneportion of said slot being circumferential and the other portion thereofat right angles to the first portion, being longitudinal of the eye,said shut-tle being provided at its delivery end with a slot having itsinner end terminating at the circumferential portion of the slot in saiddelivery eye, and a removable guard located between the eye and bobbin.10. A delivery eye inserted transversely in the throat of the shuttleand provided with a slot, one portion of the slot being circumloomshuttle having aremovable.

ferential and the other portion thereof at right angles to the firstportion, being longitudinal of the eye, and a removable guard located inthe throat of the shuttle between the eye and bobbin, said guard havinga portion projecting into a recess in said throat.

1]. A loom shuttle having a removable delivery eye inserted transverselyin the throat of the shuttle and provided with a tl11eepart slot, onepart being circumferential, another part being longitudinal andextending part way across the top of said eye toward the delivery endthereof, and the third part being longitudinal and eX-' tending from thelower end of said circumferential part to the delivery end of said eye.

12. A loom shuttle having a removable delivery eye inserted transverselyin the throat of the shuttle and provided with a three-part slot, onepart being circumferential, another part being longitudinal andextending part way across the top of said eye toward the delivery endthereof, and the third partbeing longitudinal and extending from thelower end of said circumferential part to the delivery end of said eye,and a tongue secured to said eye near the delivery end thereof, saidtongue being adapted to prevent the thread from leaving the eye.

13. A loom-shuttle having a removable delivery eye inserted transverselyin the throat of the shuttle, and a removable guard located in thethroat of the shuttle between the eye and bobbin, said guard comprisinga horizontal outwardly-extending flat piece having its rearward sidecurved throughout its length.

14. A loom-shuttle having a removable delivery-eye inserted transverselyin the throat of the shuttle and provided with a slot, one portion ofsaid slot being circumferential and the other portion thereof at rightangles to the first portion, being longitudinal to the eye, and a tonguenear the delivery-end of said eye located adjacent to and cooperatingwith a hole in the wall of said eye.

15. A loom-shuttle having a removable delivery-eye inserted transverselyin, and extending across and beyond, the throat of the shuttle andprovided with a slot, said shuttle being provided at its delivery endwith a slot having its inner end terminating directly at the slot insaid delivery-eye, and the slot in said shuttle being inclined towardthe rearward wall of the shuttle, so that the slotted portion of theshuttle overhangs the slotted portion of said delivery-eye.

16. A- loom-shuttle having a removable delivery-eye insertedtransversely in the shuttle and provided with a slot, said shuttle beingprovided at its delivery-end with a slot having its innerpart'communicating directly with the slot in said delivery-eye at fillingthread will be one side of the center of the throat of the shuttle andout of line with the longitudinal axis of the bobbin, so thatthe slottedportion of the shuttle overhangs the slotted portion of saiddelivery-eye.

17. A'loom-shuttle having a removable delivery-eye inserted transverselyin the shuttle, said shuttle being'provided at its delivery end with aslot at one side of the center of the throat of the shuttle "and out ofline with the longtiudinal axis of the bobbin, whereby during thethreading operation the drawn transversely under cover to a point inline with said axis.

18. A loom-shuttle having a removable delivery-eye inserted transverselyin the shuttle and provided with a slot, the end of said slot forming astop arranged in line with the longituidnal axis of the bobbin, saidshuttle being provided with a slot having its inner part communicatingdirectly with the slot in the delivery-eye at one side of the center-ofthe throat of the shuttle and out of line with theplongtiudinal axis ofthe bobbin, vghereby during the threading operation the filling threadwill be drawn under cover along the slot to the stop.

'19. In a loom-shuttle having a removable delivery-eye insertedtransversely in the shuttle and provided with a slot, said shuttle beingprovided with a slot communicating with the slot in the delivery-eye atone side of the center of the throat of the shuttle and out of line withthe longitudinal axis of the bobbin, the slot in said eye extendinglongitudinally thereof and its end forming a stop arranged to hold thefilling thread in line with the longitudinal axis of the bobbin, wherebythe filling thread. will be drawn along the slot under cover to the stopduring the threading operation.

In testimony whereof,- I have hereunto subscribed my name this13th dayof July ALFRED ISHERWOOD. Witnesses:

LOUIS G. PARSONS, Jr., MARGARET A. FRANKLIN.

